Patrick h



`Paralysis; coYLE, or

l Nnwgrnn N E wA .i unser.

' teammate No. 83,607, am November e, 150s.

mnovnnmw'r, m Bomen-PLUS' BRUSH-27s,

rhnemdnxe infamia w m these Leners Fame and maiungpmpf'the l To all whomit may concern,-

Be it lknown that I, PATRICK H. Conn, of the city of Newark, county ofEssex, and State-.of New Jer; sey, have invented certain Improvements 1nBoiler-Fluo Brushes; and I do hereby declare that the following, takenin connection with the drawings which accompany and form part of .thisspecication, is a descrip'- V tion of vmy invention suiicient to enablethose skilled in the artto practise'it.

The primary object of my invention -isthe construe-- tion of a brush,designed to be used for cleaning the tubes of boilers, of such materialand in such manner that it is not liable to be damaged by the heat ofthe boiler.-

Heretofore, brushes used for this have been made of bristles, or kindredmaterials, which not only rapidly wear away, but receive still greaterdamage from the excessive heat to which they are exposed, and' whichburns away the bristles as lwell as the wooden hub to which the bristlesare fastened, andas these .brushes are-quiteexpensive, anddenhtlast'ongth'ere is a great need of a brush not liable to the aboveobjections. f "c In the accompanying drawings-1 Figure l represents alo'hgitndimilsection of abrush -made in accordance with my invention;

Figure 2 is an end view ofthe same, with the handle and end-piecesremoved;

Figure 3 represents a portion oi' the handle, and the :nea-ns forlengthening the same; and

Figure liris an end view of one of the, caps of the tubular hub.l

A is a tube which may be made of wood. This tube is drilled radiallywith rows of small holes, B, of uni. form size, for the reception of thestrips' or pieces'of steel wire,G, which I employ to form the brush, instead of bristles.

- The kindof wire I have found to serve wellrny pur-'h pose is hat,similar to that employed in the manufacture of hoop-shirts, but not madetoo blittle in theprocess of hardening, being capable of considerablebending withoutbreaking, and so that-it may also be fnst passed. throughone of 'whe holes B, and then `turned back and passed l the reversedirection through the'neirtadjal cent hole in thesame line, as shown,thus leaving thebight or bend of each piece within the tube or hub ofthe brush, and its twjo free ends outside the same. All

y .the rows oi' holes are thus suppliedwith wiresor metallic strips, butprior to thus. introducing these strips into the holes, the hub shouldbe lined on its exterior, as shown, with sheet-iron or other metal, D,this metal being drilled, as above stated, with holesvfor themetal Theholes being all 4supplied with the wires, dthe inner or tubular portionof the bed or hub is now strips.

,lired with sheet-iron, or other appropriate metal, E, and the rims oredges of both theouter and inner linings may project sufficiently l(ifdesired) beyond the fit snugly in and upon wood, to admit of theirbeingiswaged down to cover the end of the woodenl nnb, so as not toexpose any of the wood to tiled-Lect action o f the heat.

' End-pieces or caps, F, are made as shown, so as to onterside facedwithv metal. -T-hrough these central openings I passa metallic rod, G,having screw-threads at both ends, as shown at II, to receive thumb-nutsI,

fwhich I employ in `order, firmly to' clamp .the heads to the hubandtohold the whole apparatus together. Washers K are preferably placedbetween the heads and vthetnmib-nul's.l

In .order .to l lengthen out the handle to any length required, so as'to ada-pt it for use with different boilers whose tubes may varylx1-length, I employ sleeves L, screw-threaded within, and othersections of rods screw- Uthreadedat the end, similarly to the centre-rodabovedescribed, the sleevebeing applied to two ends of two sections, andturned around until hotbar-91mm whether That end is not attached is alsoallowed to project beyond the brush a suiiicient distance to allowitsextreme end to come in contact with the end wall of the boiler, andalrest the further advance of the, brush, betere the brush shall havebeen pushed entirely ont of the. tube which is being cleansed, thusavoidiilg the annoyance and delay, well as the strain upon the handleand Yliability' of damage to the brush, which .wouldbe inciff l down ofthe V brush-part if per: f A ,mitted to pass entirely out o that end ofthe flue or dent to the dropping tube.

prefer tomake it so, though-this is not absolutely necessary.

same size of wire to insure a proper degree of stiuess,

or I can use the samesized hub,rand usewire of a different sizeandthickness.`

By my mode of commutation', it is evident thatJ if the bmslrshonld wearirregularly, it can readily be reversed upon its lhandle to correct suchwear and insure its continued efliciency; and,also that if, bycarelessness or -rough usage', any ofthe wires should be broken orotherwise, damaged, they may be readily replaced by new ones, by simplytaking ont, for that lpurpose, the inner lining '11, and replacing -itagain, this lining serving as a1..

supporti -base or bed to, hold all the wires in place.

,. It is `aso evident that I may omit the outer lining of metal upon theperiphery and end-pieces ofthe hub, but I prefer to use them as aprotection of the wood irorlgr liability to be burned and charred by theheat.

the ends of the tubular hub, and 'each of y.these has a central opening,and has its f the central rod to which thelon'g handle I have shown thecentralrod 0r handle tubulr, :indi

. '11n adapt my brushto fines oidilerent sizes', I have but to make thehub of a dili'erent size, employing the uproved brush, I am enabled tocleanse` the lines whiistthe fire isupkandatperiods whena, brushofbristles could not be used at all withoutcer-

